Home / 1,177.07-1,616.90-1,117.84

Finding the Fourth Proportional to 1,177.07, 1,616.90 and 1,117.84

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Solution

The fourth proportional to 1,177.07, 1,616.90 and 1,117.84 is: 1,535.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.07 : 1,616.90 = 1,117.84 : x
  2. Step 2: Convert to fraction form
    1,177.07/1,616.90 = 1,117.84/x
  3. Step 3: Cross multiply
    1,177.07x = 1,616.90 × 1,117.84
  4. Step 4: Simplify right side
    1,177.07x = 1,807,435.50
  5. Step 5: Solve for x
    x = 1,807,435.50/1,177.07
  6. Step 6: Final answer
    x = 1,535.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.